If the crankshaft requires refurbishment, then do so along with the other wear prone components that make up the assembly including all new bearings, piston rings, piston pins and the piston pin retention circlips 0938120004 - all pretty much essential when rebuilding the engine. Attempting to save money by reusing old parts is a false economy and may lead to premature wear or even failure of some of those new parts - particularly bearings.
Other crankshaft/piston/con-rod related parts you may wish to consider:
Pro-workshop gasket sealant: 08C70K0234M. Easy to apply with results to professional levels of excellence.
Add as many items as you wish to the same shopping cart, new spacing washers 0916048002 or 0916048003 for example, and still only pay the same single fixed price shipping cost.
This component may have other applications within the Suzuki model range, so please check the part-numbers you order are correct for your model.